separation simply won't happen unless energy is absorbed to allow it, making part of your reasoning circular.
I should have mentioned before that while an electron in free space cannot fully absorb a photon, it would typically scatter a photon, absorbing some energy from it, and effectively replacing the photon with a lower energy one travelling at a different angle. See Compton Scattering for the math.
Quote separation simply won't happen unless energy is absorbed to allow it, making part of your reasoning circular.Electrons and positrons are subject to field E regardless of their distance. Or would you imply that as electron and positron no longer form a dipole, they are not subject to an external field? It seems strange.
The research to overcome the speed of light has so far concentrated on bending space time in the appropriate ways: http://publicationslist.org/spacetimeshortcutBut this is not the only way: there is also the 'Scharnhorst effect'. Scharnhorst believed that the virtual pairs slowed down light and that, in certain circumstances, when, for example in the Casimir effect, in a space region there were less virtual pairs than normal, the value of c grew. His demonstration uses only the maxwell equations and the quantum mechanics but is not complete in some way (I did not understand the technicalities in that regard) anyway what happens when in an area of space there is an electric field greater than the Schwinger limit?https://en.wikipedia.org/wiki/Schwinger_limitTheoretically an electric field so intense separates the virtual pairs ... so, since the light is no longer restrained, the value of c increases?(The wiki does not talk about the possibility of separating virtual pairs with an electric field greater than the Schwinger limit. You will find everything here: http://www.nytimes.com/1997/09/16/science/scientists-use-light-to-create-particles.html)Schwinger's limit is not yet reachable experimentally, but in a few decades they expect it to become .... so whoever will live will see it.What do you think?
EmDrive:In the article 'Does the speed of light depend on vacuum', the dependence of the virtual couple lifetime and the module of an external electric or magnetic field is calculated. Surprisingly, this relationship does not depend on the angle between the dipole and the field. I thought a way to use virtual couples for propulsion is to make life time grow more if the couple is moving in a certain direction. It should be possible with an electric field that grows very rapidly in the aforementioned direction. The virtual pairs appear with a momentum that follows a uniform distribution, those moving in the 'privileged' direction live longer so the isotropy of the momentum is broken and the apparatus accelerates in the opposite direction.Maybe something like this happens in the emDrive. I do not know.
so near a black hole the photons are superluminal.
whe have E >> schwinger limit => superluminal photons
When the value of c changes in a certain space region Loretz transformations change in agreement. So if c grows, relativistic effects weaken and the limit speed achievable with a reasonable amount of energy increases.